The only benefit is you know it's compatible.
Warranty as well.. but they only cover replacement on the product, not labor. We e warranties a few things with 3m -
They had a reflective vinyl that delaminated from the glue after a year. So we had every roll we purchased refunded to us... Something like $2200. We didn't use it a lot, I think 3 rolls. Maybe 5 jobs came back to us as delaminated... It cost us a heck of a lot more than $2200 to reface the signs and reinstall them for the client. So while getting some money is nice... Warranty isn't worth sticking to the same brand over.
We mix all the time. Only time we don't is of it's supposed to be traffic certified, or it's a government job that specs it. Other than that... It's a free for all. I'd test your combo first before printing and laminating 10 rolls though. Incompatibility is rare, but it does happen.